Article
Nanoscience & Nanotechnology
Polina Ivanova, Konrad Dziegielewski, Marcin Drozd, Sandra Skorupska, Ilona Grabowska-Jadach, Mariusz Pietrzak
Summary: Reactive oxygen species (ROS) are important in physiological processes but can pose a threat to health with increased concentrations. Different defense systems in plants, invertebrates, and vertebrates including humans combat ROS, but environmental conditions and lifestyle can interfere with enzyme activity. Therefore, finding alternative ROS scavengers is crucial, with nanozymes being a proposed solution to mimic essential enzyme activities and prevent excessive ROS activity.
Article
Chemistry, Physical
Guangshan Xie, Lin Zhu, Yanhao Zhang, Yuanyuan Song, Hongna Zhang, Zhu Yang, Zongwei Cai
Summary: 1-Nitropyrene (1-NP) is a potential carcinogen found in diesel exhaust-derived fine particulate matter (PM2.5) with higher cytotoxicity compared to its analogs. In human lung epithelial cell lines, 1-NP induces acute reactive oxygen species (ROS) generation and cell death. Through redox proteomics analysis, it was discovered that 1-NP remodels the redox proteome and targets the ROS reduction pathway, specifically inhibiting SOD1 activity by acting on Cys111 residue. The position of nitroxide determines the direct target of 1-NP, proposing a novel mechanism for its cytotoxicity and ROS induction.
Review
Biochemistry & Molecular Biology
Kranti A. Mapuskar, Emily J. Steinbach, Amira Zaher, Dennis P. Riley, Robert A. Beardsley, Jeffery L. Keene, Jon T. Holmlund, Carryn M. Anderson, Diana Zepeda-Orozco, John M. Buatti, Douglas R. Spitz, Bryan G. Allen
Summary: Cisplatin is a widely used chemotherapy agent with potent anti-tumor activity, but it can cause renal injuries, leading to the need for intervention strategies to reduce kidney damage. In addition to DNA cross-linking, cisplatin affects mitochondrial metabolism, resulting in reactive oxygen species production and renal damage. Mitochondrial superoxide dismutase mimetics show potential in preventing platinum-associated nephrotoxicity.
Article
Biochemistry & Molecular Biology
Jose Teixeira, Farhan Basit, Peter H. G. M. Willems, Jori A. Wagenaars, Els van de Westerlo, Ricardo Amorim, Fernando Cagide, Sofia Benfeito, Catarina Oliveira, Fernanda Borges, Paulo J. Oliveira, Werner J. H. Koopman
Summary: The novel mitochondria-targeted variants of gallic and caffeic acid were found to increase ROS levels, stimulate NRF2 expression, and increase SOD2 and GSH levels.
FREE RADICAL BIOLOGY AND MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Ryan J. Mailloux
Summary: Mitochondria primarily produce superoxide and hydrogen peroxide, with the latter being considered the main ROS emitted into the cell. While H2O2 is now recognized as a central component in redox signaling, it has been suggested that superoxide may also act as a signal in mammalian cells.
Article
Pharmacology & Pharmacy
Xinxin Shao, Mengzhu Zhang, Yingxuan Chen, Siyu Sun, Shengcai Yang, Quanshun Li
Summary: Aging is a process driven by reactive oxygen species (ROS), and superoxide dismutase (SOD) can scavenge ROS to extend lifespan. However, the instability and impermeability of native SOD limit its application. In this study, SOD was encapsulated into exosomes to obtain SOD@EXO, which significantly extended the lifespan of C. elegans and improved resistance against stress conditions.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Plant Sciences
Li Tian, Junjiao Li, Caimin Huang, Dandan Zhang, Yan Xu, Xingyong Yang, Jian Song, Dan Wang, Nianwei Qiu, Dylan P. G. Short, Patrik Inderbitzin, Krishna Subbarao, Jieyin Chen, Xiaofeng Dai
Summary: The accumulation of ROS is a common defense mechanism in higher plants against pathogen attack. Previous studies showed that Cu/Zn-SOD1 (VdSOD1) in plants is upregulated following infection, indicating its role in pathogen virulence. Deletion of VdSOD1 leads to increased sensitivity to ROS generator menadione and relies on Golgi reassembly stacking protein for secretion. Overall, VdSOD1 plays a significant role in scavenging ROS and promoting virulence in V. dahliae.
MOLECULAR PLANT PATHOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ye Cui, Zeran Yang, Zhe Lv, Jianfeng Lei
Summary: Research shows that aerosolized delivery of recombinant extracellular superoxide dismutase (ECSOD) can suppress established lung fibrosis. ECSOD expression decreases during fibrosis but can spontaneously restore during resolution. Knockdown of ECSOD impairs fibrosis resolution.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE
(2023)
Article
Biochemistry & Molecular Biology
Janae D. Sweeney, Marija Debeljak, Stacy Riel, Ana Cecilia Millena, James R. Eshleman, Channing J. Paller, Valerie Odero-Marah
Summary: The research showed that SOD2 expression did not correlate with tumor aggressiveness or SOD2 genotype in prostate cancer. However, the Ala-SOD2 allele may promote EMT, leading to increased cell migration. The antioxidant MSKE could inhibit EMT mediated by Ala-SOD2 SNP, indicating promising therapeutic potential for halting prostate cancer progression.
Review
Biochemistry & Molecular Biology
Brianne R. O'Leary, Rory S. Carroll, Garett J. Steers, Jennifer Hrabe, Frederick E. Domann, Joseph J. Cullen
Summary: Reactive oxygen species are essential components in cell signaling and immune responses, but an imbalance can lead to oxidative stress. Cancer cells show increased oxidative stress and decreased expression of extracellular superoxide dismutase, an antioxidant enzyme that plays a role in maintaining redox balance and protecting against oxidative damage. Understanding the role of EcSOD in cancer could have potential implications for detection, prognosis, and treatment of malignancies.
Article
Biochemistry & Molecular Biology
Hoi-Shan Wong, Martin D. Brand, Vojtech Mezera, Pratiksha Dighe, Simon Melov, Akos A. Gerencser, Ramzi F. Sweis, Marina Pliushchev, Zhi Wang, Tim Esbenshade, Bryan McKibben, Stephan Riedmaier, Martin D. Brand
Summary: The study demonstrated the effectiveness of novel variants of S1QELs in vivo, showing that mitochondrial site I-Q plays a significant role in driving pathology in Sod2(-/-) mice, while site IIIQo does not significantly contribute to mitochondrial superoxide production in these mice. Treatment with S1QEL352 and S1QEL712 improved cardiac and hepatic pathologies in Sod2(-/-) mice, confirming the importance of superoxide production from mitochondrial site I-Q in hepatic steatosis.
FREE RADICAL BIOLOGY AND MEDICINE
(2021)
Article
Pharmacology & Pharmacy
Yawei Wang, Hongbing Lin, Xuetao Zhao, Tong Ding, Yuqin Shen
Summary: Periodontitis is a chronic inflammatory disease characterized by alveolar bone loss. Reactive oxygen species (ROS) play a role in promoting inflammation and bone resorption. Superoxide dismutase (SOD) is an effective antioxidant enzyme that can reduce oxidative stress and inflammation. However, the short half-life and instability of SOD limit its application. Zeolitic imidazolate framework-90 (ZIF-90) can protect and stabilize SOD molecules. In this study, ATP-responsive SOD@ZIF-90 was prepared and showed potential in reducing inflammation and oxidative stress in human osteoblasts.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Eun Yeong Lim, So-Young Lee, Hee Soon Shin, Gun-Dong Kim
Summary: Acute respiratory distress syndrome (ARDS) is a life-threatening pulmonary condition with a lack of comprehensive treatment. Reactive oxygen species (ROS) play a pivotal role in the pathophysiology of ARDS. Antioxidants are considered to have the potential to alleviate ARDS.
Review
Biochemistry & Molecular Biology
Jinsu Lee, Minsoo Han, Yesol Shin, Jung-Min Lee, Geon Heo, Yuree Lee
Summary: Reactive oxygen species (ROS), primarily generated by NADPH oxidases (RBOHs), serve as secondary messengers in developmental and signal transduction processes. However, the types and locations of ROS produced by RBOHs differ from those involved in intracellular signaling. Recent studies have revealed mechanisms underlying extracellular ROS (eROS) action, including perception in the apoplast, crosstalk with reactive nitrogen species, and contributions of intracellular organelles. This review summarizes these advances and provides an overview of the routes by which eROS-induced changes reach the intracellular space.
MOLECULES AND CELLS
(2023)
Article
Biochemistry & Molecular Biology
James H. Schofield, Zachary T. Schafer
Summary: The relationship between mitophagy and ROS production is complex and not fully understood. This review discusses mtROS generation and their detrimental effects on cellular viability, along with the cellular defense mechanisms against oxidative stress. Furthermore, the prominent mechanisms governing mitophagy induction that bear on oxidative stress are explored.
ANTIOXIDANTS & REDOX SIGNALING
(2021)
Article
Biochemistry & Molecular Biology
Armando Moreno-Velasco, Mabel Fragoso-Serrano, Pedro de Jesus Flores-Tafoya, Sebastian Carrillo-Rojas, Elihu Bautista, Suzana Guimara Leitao, Jhon F. Castaneda-Gomez, Rogelio Pereda-Miranda
Summary: This study investigated the roots of Operculina hamiltonii, a traditional medicinal plant in Brazil. Three new acyl sugars or resin glycosides were identified and their structures elucidated. The combination of these compounds with other drugs showed enhanced cytotoxic effects on breast cancer cells.
Article
Biochemistry & Molecular Biology
Qian-Qing Liu, Lin-An Xiong, Jia-Yu Qian, Ting-Ting Gong, Lie-Feng Ma, Luo Fang, Zha-Jun Zhan
Summary: A new naturally occurring compound, Linderagatins C-F (1-4), with the structures of diaryltetrahydrofuran-type 7,9'-dinorlignans, was discovered in the roots of Lindera aggregata. The neuroprotective effects of compounds 2 and 3 on erastin-induced ferroptosis in HT-22 cells were found to be significant.